Home / 101,434.87-152,166.15-42,256.70

Finding the Fourth Proportional to 101,434.87, 152,166.15 and 42,256.70

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Solution

The fourth proportional to 101,434.87, 152,166.15 and 42,256.70 is: 63,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,434.87 : 152,166.15 = 42,256.70 : x
  2. Step 2: Convert to fraction form
    101,434.87/152,166.15 = 42,256.70/x
  3. Step 3: Cross multiply
    101,434.87x = 152,166.15 × 42,256.70
  4. Step 4: Simplify right side
    101,434.87x = 6,430,039,731.12
  5. Step 5: Solve for x
    x = 6,430,039,731.12/101,434.87
  6. Step 6: Final answer
    x = 63,390.82

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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.