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Finding the Fourth Proportional to 157,060.01, 216,823.08 and 121,169.45

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Solution

The fourth proportional to 157,060.01, 216,823.08 and 121,169.45 is: 167,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,060.01 : 216,823.08 = 121,169.45 : x
  2. Step 2: Convert to fraction form
    157,060.01/216,823.08 = 121,169.45/x
  3. Step 3: Cross multiply
    157,060.01x = 216,823.08 × 121,169.45
  4. Step 4: Simplify right side
    157,060.01x = 26,272,332,266.79
  5. Step 5: Solve for x
    x = 26,272,332,266.79/157,060.01
  6. Step 6: Final answer
    x = 167,275.76

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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.