Home / 153,925.19-212,360.66-90,250.68

Finding the Fourth Proportional to 153,925.19, 212,360.66 and 90,250.68

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Solution

The fourth proportional to 153,925.19, 212,360.66 and 90,250.68 is: 124,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,925.19 : 212,360.66 = 90,250.68 : x
  2. Step 2: Convert to fraction form
    153,925.19/212,360.66 = 90,250.68/x
  3. Step 3: Cross multiply
    153,925.19x = 212,360.66 × 90,250.68
  4. Step 4: Simplify right side
    153,925.19x = 19,165,693,519.00
  5. Step 5: Solve for x
    x = 19,165,693,519.00/153,925.19
  6. Step 6: Final answer
    x = 124,513.05

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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.