Home / 99,706.16-137,588.28-54,995.12

Finding the Fourth Proportional to 99,706.16, 137,588.28 and 54,995.12

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Solution

The fourth proportional to 99,706.16, 137,588.28 and 54,995.12 is: 75,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,706.16 : 137,588.28 = 54,995.12 : x
  2. Step 2: Convert to fraction form
    99,706.16/137,588.28 = 54,995.12/x
  3. Step 3: Cross multiply
    99,706.16x = 137,588.28 × 54,995.12
  4. Step 4: Simplify right side
    99,706.16x = 7,566,683,969.19
  5. Step 5: Solve for x
    x = 7,566,683,969.19/99,706.16
  6. Step 6: Final answer
    x = 75,889.83

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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.