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Finding the Fourth Proportional to 109,668.74, 151,333.65 and 64,341.95

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Solution

The fourth proportional to 109,668.74, 151,333.65 and 64,341.95 is: 88,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,668.74 : 151,333.65 = 64,341.95 : x
  2. Step 2: Convert to fraction form
    109,668.74/151,333.65 = 64,341.95/x
  3. Step 3: Cross multiply
    109,668.74x = 151,333.65 × 64,341.95
  4. Step 4: Simplify right side
    109,668.74x = 9,737,101,384.95
  5. Step 5: Solve for x
    x = 9,737,101,384.95/109,668.74
  6. Step 6: Final answer
    x = 88,786.48

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1.5x scale

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.