Home / 107,031.96-147,715.02-61,711.56

Finding the Fourth Proportional to 107,031.96, 147,715.02 and 61,711.56

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Solution

The fourth proportional to 107,031.96, 147,715.02 and 61,711.56 is: 85,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,031.96 : 147,715.02 = 61,711.56 : x
  2. Step 2: Convert to fraction form
    107,031.96/147,715.02 = 61,711.56/x
  3. Step 3: Cross multiply
    107,031.96x = 147,715.02 × 61,711.56
  4. Step 4: Simplify right side
    107,031.96x = 9,115,724,319.63
  5. Step 5: Solve for x
    x = 9,115,724,319.63/107,031.96
  6. Step 6: Final answer
    x = 85,168.25

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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.