Home / 118,532.17-163,525.12-77,685.13

Finding the Fourth Proportional to 118,532.17, 163,525.12 and 77,685.13

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Solution

The fourth proportional to 118,532.17, 163,525.12 and 77,685.13 is: 107,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,532.17 : 163,525.12 = 77,685.13 : x
  2. Step 2: Convert to fraction form
    118,532.17/163,525.12 = 77,685.13/x
  3. Step 3: Cross multiply
    118,532.17x = 163,525.12 × 77,685.13
  4. Step 4: Simplify right side
    118,532.17x = 12,703,470,205.47
  5. Step 5: Solve for x
    x = 12,703,470,205.47/118,532.17
  6. Step 6: Final answer
    x = 107,173.19

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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.