Home / 118,422.78-163,532.55-76,055.13

Finding the Fourth Proportional to 118,422.78, 163,532.55 and 76,055.13

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Solution

The fourth proportional to 118,422.78, 163,532.55 and 76,055.13 is: 105,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,422.78 : 163,532.55 = 76,055.13 : x
  2. Step 2: Convert to fraction form
    118,422.78/163,532.55 = 76,055.13/x
  3. Step 3: Cross multiply
    118,422.78x = 163,532.55 × 76,055.13
  4. Step 4: Simplify right side
    118,422.78x = 12,437,489,349.48
  5. Step 5: Solve for x
    x = 12,437,489,349.48/118,422.78
  6. Step 6: Final answer
    x = 105,026.16

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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.