Home / 157,520.40-236,280.60-143,742.30

Finding the Fourth Proportional to 157,520.40, 236,280.60 and 143,742.30

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Solution

The fourth proportional to 157,520.40, 236,280.60 and 143,742.30 is: 215,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,520.40 : 236,280.60 = 143,742.30 : x
  2. Step 2: Convert to fraction form
    157,520.40/236,280.60 = 143,742.30/x
  3. Step 3: Cross multiply
    157,520.40x = 236,280.60 × 143,742.30
  4. Step 4: Simplify right side
    157,520.40x = 33,963,516,889.38
  5. Step 5: Solve for x
    x = 33,963,516,889.38/157,520.40
  6. Step 6: Final answer
    x = 215,613.45

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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.