Home / 153,925.60-212,418.18-90,264.40

Finding the Fourth Proportional to 153,925.60, 212,418.18 and 90,264.40

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Solution

The fourth proportional to 153,925.60, 212,418.18 and 90,264.40 is: 124,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,925.60 : 212,418.18 = 90,264.40 : x
  2. Step 2: Convert to fraction form
    153,925.60/212,418.18 = 90,264.40/x
  3. Step 3: Cross multiply
    153,925.60x = 212,418.18 × 90,264.40
  4. Step 4: Simplify right side
    153,925.60x = 19,173,799,566.79
  5. Step 5: Solve for x
    x = 19,173,799,566.79/153,925.60
  6. Step 6: Final answer
    x = 124,565.37

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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.