Home / 154,248.66-212,864.76-90,587.52

Finding the Fourth Proportional to 154,248.66, 212,864.76 and 90,587.52

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Solution

The fourth proportional to 154,248.66, 212,864.76 and 90,587.52 is: 125,011.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,248.66 : 212,864.76 = 90,587.52 : x
  2. Step 2: Convert to fraction form
    154,248.66/212,864.76 = 90,587.52/x
  3. Step 3: Cross multiply
    154,248.66x = 212,864.76 × 90,587.52
  4. Step 4: Simplify right side
    154,248.66x = 19,282,890,703.80
  5. Step 5: Solve for x
    x = 19,282,890,703.80/154,248.66
  6. Step 6: Final answer
    x = 125,011.72

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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.