Home / 91,502.28-126,159.27-70,018.65

Finding the Fourth Proportional to 91,502.28, 126,159.27 and 70,018.65

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Solution

The fourth proportional to 91,502.28, 126,159.27 and 70,018.65 is: 96,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,502.28 : 126,159.27 = 70,018.65 : x
  2. Step 2: Convert to fraction form
    91,502.28/126,159.27 = 70,018.65/x
  3. Step 3: Cross multiply
    91,502.28x = 126,159.27 × 70,018.65
  4. Step 4: Simplify right side
    91,502.28x = 8,833,501,770.39
  5. Step 5: Solve for x
    x = 8,833,501,770.39/91,502.28
  6. Step 6: Final answer
    x = 96,538.60

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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.