Home / 102,445.80-153,263.28-77,557.68

Finding the Fourth Proportional to 102,445.80, 153,263.28 and 77,557.68

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Solution

The fourth proportional to 102,445.80, 153,263.28 and 77,557.68 is: 116,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,445.80 : 153,263.28 = 77,557.68 : x
  2. Step 2: Convert to fraction form
    102,445.80/153,263.28 = 77,557.68/x
  3. Step 3: Cross multiply
    102,445.80x = 153,263.28 × 77,557.68
  4. Step 4: Simplify right side
    102,445.80x = 11,886,744,425.99
  5. Step 5: Solve for x
    x = 11,886,744,425.99/102,445.80
  6. Step 6: Final answer
    x = 116,029.59

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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.