Home / 117,681.10-162,437.07-75,239.80

Finding the Fourth Proportional to 117,681.10, 162,437.07 and 75,239.80

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Solution

The fourth proportional to 117,681.10, 162,437.07 and 75,239.80 is: 103,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,681.10 : 162,437.07 = 75,239.80 : x
  2. Step 2: Convert to fraction form
    117,681.10/162,437.07 = 75,239.80/x
  3. Step 3: Cross multiply
    117,681.10x = 162,437.07 × 75,239.80
  4. Step 4: Simplify right side
    117,681.10x = 12,221,732,659.39
  5. Step 5: Solve for x
    x = 12,221,732,659.39/117,681.10
  6. Step 6: Final answer
    x = 103,854.68

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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.