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Finding the Fourth Proportional to 114,681.72, 158,466.12 and 89,720.76

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Solution

The fourth proportional to 114,681.72, 158,466.12 and 89,720.76 is: 123,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,681.72 : 158,466.12 = 89,720.76 : x
  2. Step 2: Convert to fraction form
    114,681.72/158,466.12 = 89,720.76/x
  3. Step 3: Cross multiply
    114,681.72x = 158,466.12 × 89,720.76
  4. Step 4: Simplify right side
    114,681.72x = 14,217,700,720.65
  5. Step 5: Solve for x
    x = 14,217,700,720.65/114,681.72
  6. Step 6: Final answer
    x = 123,975.30

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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.