Home / 158,526.38-218,769.23-85,931.65

Finding the Fourth Proportional to 158,526.38, 218,769.23 and 85,931.65

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Solution

The fourth proportional to 158,526.38, 218,769.23 and 85,931.65 is: 118,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,526.38 : 218,769.23 = 85,931.65 : x
  2. Step 2: Convert to fraction form
    158,526.38/218,769.23 = 85,931.65/x
  3. Step 3: Cross multiply
    158,526.38x = 218,769.23 × 85,931.65
  4. Step 4: Simplify right side
    158,526.38x = 18,799,199,926.55
  5. Step 5: Solve for x
    x = 18,799,199,926.55/158,526.38
  6. Step 6: Final answer
    x = 118,587.20

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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.