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Finding the Fourth Proportional to 154,754.35, 213,482.40 and 101,070.79

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Solution

The fourth proportional to 154,754.35, 213,482.40 and 101,070.79 is: 139,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,754.35 : 213,482.40 = 101,070.79 : x
  2. Step 2: Convert to fraction form
    154,754.35/213,482.40 = 101,070.79/x
  3. Step 3: Cross multiply
    154,754.35x = 213,482.40 × 101,070.79
  4. Step 4: Simplify right side
    154,754.35x = 21,576,834,819.10
  5. Step 5: Solve for x
    x = 21,576,834,819.10/154,754.35
  6. Step 6: Final answer
    x = 139,426.35

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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.