Home / 136,697.42-188,642.18-76,264.47

Finding the Fourth Proportional to 136,697.42, 188,642.18 and 76,264.47

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Solution

The fourth proportional to 136,697.42, 188,642.18 and 76,264.47 is: 105,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,697.42 : 188,642.18 = 76,264.47 : x
  2. Step 2: Convert to fraction form
    136,697.42/188,642.18 = 76,264.47/x
  3. Step 3: Cross multiply
    136,697.42x = 188,642.18 × 76,264.47
  4. Step 4: Simplify right side
    136,697.42x = 14,386,696,068.01
  5. Step 5: Solve for x
    x = 14,386,696,068.01/136,697.42
  6. Step 6: Final answer
    x = 105,244.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.