Home / 99,723.62-137,669.36-77,011.62

Finding the Fourth Proportional to 99,723.62, 137,669.36 and 77,011.62

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Solution

The fourth proportional to 99,723.62, 137,669.36 and 77,011.62 is: 106,315.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,723.62 : 137,669.36 = 77,011.62 : x
  2. Step 2: Convert to fraction form
    99,723.62/137,669.36 = 77,011.62/x
  3. Step 3: Cross multiply
    99,723.62x = 137,669.36 × 77,011.62
  4. Step 4: Simplify right side
    99,723.62x = 10,602,140,052.91
  5. Step 5: Solve for x
    x = 10,602,140,052.91/99,723.62
  6. Step 6: Final answer
    x = 106,315.24

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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.