Home / 154,315.52-212,884.80-90,652.16

Finding the Fourth Proportional to 154,315.52, 212,884.80 and 90,652.16

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Solution

The fourth proportional to 154,315.52, 212,884.80 and 90,652.16 is: 125,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,315.52 : 212,884.80 = 90,652.16 : x
  2. Step 2: Convert to fraction form
    154,315.52/212,884.80 = 90,652.16/x
  3. Step 3: Cross multiply
    154,315.52x = 212,884.80 × 90,652.16
  4. Step 4: Simplify right side
    154,315.52x = 19,298,466,951.17
  5. Step 5: Solve for x
    x = 19,298,466,951.17/154,315.52
  6. Step 6: Final answer
    x = 125,058.50

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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.