Home / 139,968,192.80-209,952,289.20-88,312,127.60

Finding the Fourth Proportional to 139,968,192.80, 209,952,289.20 and 88,312,127.60

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Solution

The fourth proportional to 139,968,192.80, 209,952,289.20 and 88,312,127.60 is: 132,468,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,192.80 : 209,952,289.20 = 88,312,127.60 : x
  2. Step 2: Convert to fraction form
    139,968,192.80/209,952,289.20 = 88,312,127.60/x
  3. Step 3: Cross multiply
    139,968,192.80x = 209,952,289.20 × 88,312,127.60
  4. Step 4: Simplify right side
    139,968,192.80x = 18,541,333,353,742,500
  5. Step 5: Solve for x
    x = 18,541,333,353,742,500/139,968,192.80
  6. Step 6: Final answer
    x = 132,468,191.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.