Home / 157,415.90-236,123.85-101,428.70

Finding the Fourth Proportional to 157,415.90, 236,123.85 and 101,428.70

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Solution

The fourth proportional to 157,415.90, 236,123.85 and 101,428.70 is: 152,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,415.90 : 236,123.85 = 101,428.70 : x
  2. Step 2: Convert to fraction form
    157,415.90/236,123.85 = 101,428.70/x
  3. Step 3: Cross multiply
    157,415.90x = 236,123.85 × 101,428.70
  4. Step 4: Simplify right side
    157,415.90x = 23,949,735,144.50
  5. Step 5: Solve for x
    x = 23,949,735,144.50/157,415.90
  6. Step 6: Final answer
    x = 152,143.05

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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.