Home / 99,389.03-137,160.14-56,955.69

Finding the Fourth Proportional to 99,389.03, 137,160.14 and 56,955.69

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Solution

The fourth proportional to 99,389.03, 137,160.14 and 56,955.69 is: 78,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.03 : 137,160.14 = 56,955.69 : x
  2. Step 2: Convert to fraction form
    99,389.03/137,160.14 = 56,955.69/x
  3. Step 3: Cross multiply
    99,389.03x = 137,160.14 × 56,955.69
  4. Step 4: Simplify right side
    99,389.03x = 7,812,050,129.42
  5. Step 5: Solve for x
    x = 7,812,050,129.42/99,389.03
  6. Step 6: Final answer
    x = 78,600.73

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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.