Home / 143,312.40-215,065.80-93,270.60

Finding the Fourth Proportional to 143,312.40, 215,065.80 and 93,270.60

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Solution

The fourth proportional to 143,312.40, 215,065.80 and 93,270.60 is: 139,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,312.40 : 215,065.80 = 93,270.60 : x
  2. Step 2: Convert to fraction form
    143,312.40/215,065.80 = 93,270.60/x
  3. Step 3: Cross multiply
    143,312.40x = 215,065.80 × 93,270.60
  4. Step 4: Simplify right side
    143,312.40x = 20,059,316,205.48
  5. Step 5: Solve for x
    x = 20,059,316,205.48/143,312.40
  6. Step 6: Final answer
    x = 139,969.16

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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.