Home / 107,507.76-148,381.27-71,209.63

Finding the Fourth Proportional to 107,507.76, 148,381.27 and 71,209.63

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Solution

The fourth proportional to 107,507.76, 148,381.27 and 71,209.63 is: 98,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,507.76 : 148,381.27 = 71,209.63 : x
  2. Step 2: Convert to fraction form
    107,507.76/148,381.27 = 71,209.63/x
  3. Step 3: Cross multiply
    107,507.76x = 148,381.27 × 71,209.63
  4. Step 4: Simplify right side
    107,507.76x = 10,566,175,343.08
  5. Step 5: Solve for x
    x = 10,566,175,343.08/107,507.76
  6. Step 6: Final answer
    x = 98,282.91

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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.