Home / 185,070.40-255,397.95-100,187.46

Finding the Fourth Proportional to 185,070.40, 255,397.95 and 100,187.46

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Solution

The fourth proportional to 185,070.40, 255,397.95 and 100,187.46 is: 138,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,070.40 : 255,397.95 = 100,187.46 : x
  2. Step 2: Convert to fraction form
    185,070.40/255,397.95 = 100,187.46/x
  3. Step 3: Cross multiply
    185,070.40x = 255,397.95 × 100,187.46
  4. Step 4: Simplify right side
    185,070.40x = 25,587,671,899.71
  5. Step 5: Solve for x
    x = 25,587,671,899.71/185,070.40
  6. Step 6: Final answer
    x = 138,259.13

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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.