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Finding the Fourth Proportional to 143,359.60, 215,082.60 and 101,887.60

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Solution

The fourth proportional to 143,359.60, 215,082.60 and 101,887.60 is: 152,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,359.60 : 215,082.60 = 101,887.60 : x
  2. Step 2: Convert to fraction form
    143,359.60/215,082.60 = 101,887.60/x
  3. Step 3: Cross multiply
    143,359.60x = 215,082.60 × 101,887.60
  4. Step 4: Simplify right side
    143,359.60x = 21,914,249,915.76
  5. Step 5: Solve for x
    x = 21,914,249,915.76/143,359.60
  6. Step 6: Final answer
    x = 152,862.10

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1.5x scale

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.