Home / 107,031.28-147,704.40-59,285.56

Finding the Fourth Proportional to 107,031.28, 147,704.40 and 59,285.56

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Solution

The fourth proportional to 107,031.28, 147,704.40 and 59,285.56 is: 81,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,031.28 : 147,704.40 = 59,285.56 : x
  2. Step 2: Convert to fraction form
    107,031.28/147,704.40 = 59,285.56/x
  3. Step 3: Cross multiply
    107,031.28x = 147,704.40 × 59,285.56
  4. Step 4: Simplify right side
    107,031.28x = 8,756,738,068.46
  5. Step 5: Solve for x
    x = 8,756,738,068.46/107,031.28
  6. Step 6: Final answer
    x = 81,814.76

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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.