Home / 156,665.48-235,030.78-71,235.62

Finding the Fourth Proportional to 156,665.48, 235,030.78 and 71,235.62

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Solution

The fourth proportional to 156,665.48, 235,030.78 and 71,235.62 is: 106,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,665.48 : 235,030.78 = 71,235.62 : x
  2. Step 2: Convert to fraction form
    156,665.48/235,030.78 = 71,235.62/x
  3. Step 3: Cross multiply
    156,665.48x = 235,030.78 × 71,235.62
  4. Step 4: Simplify right side
    156,665.48x = 16,742,563,127.64
  5. Step 5: Solve for x
    x = 16,742,563,127.64/156,665.48
  6. Step 6: Final answer
    x = 106,868.24

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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.