Home / 154,002.04-212,526.30-90,385.72

Finding the Fourth Proportional to 154,002.04, 212,526.30 and 90,385.72

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Solution

The fourth proportional to 154,002.04, 212,526.30 and 90,385.72 is: 124,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,002.04 : 212,526.30 = 90,385.72 : x
  2. Step 2: Convert to fraction form
    154,002.04/212,526.30 = 90,385.72/x
  3. Step 3: Cross multiply
    154,002.04x = 212,526.30 × 90,385.72
  4. Step 4: Simplify right side
    154,002.04x = 19,209,342,644.44
  5. Step 5: Solve for x
    x = 19,209,342,644.44/154,002.04
  6. Step 6: Final answer
    x = 124,734.34

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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.