Home / 154,332.08-212,931.04-100,597.52

Finding the Fourth Proportional to 154,332.08, 212,931.04 and 100,597.52

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Solution

The fourth proportional to 154,332.08, 212,931.04 and 100,597.52 is: 138,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,332.08 : 212,931.04 = 100,597.52 : x
  2. Step 2: Convert to fraction form
    154,332.08/212,931.04 = 100,597.52/x
  3. Step 3: Cross multiply
    154,332.08x = 212,931.04 × 100,597.52
  4. Step 4: Simplify right side
    154,332.08x = 21,420,334,555.02
  5. Step 5: Solve for x
    x = 21,420,334,555.02/154,332.08
  6. Step 6: Final answer
    x = 138,793.79

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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.