Home / 101,283.20-151,803.30-42,088.40

Finding the Fourth Proportional to 101,283.20, 151,803.30 and 42,088.40

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Solution

The fourth proportional to 101,283.20, 151,803.30 and 42,088.40 is: 63,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,283.20 : 151,803.30 = 42,088.40 : x
  2. Step 2: Convert to fraction form
    101,283.20/151,803.30 = 42,088.40/x
  3. Step 3: Cross multiply
    101,283.20x = 151,803.30 × 42,088.40
  4. Step 4: Simplify right side
    101,283.20x = 6,389,158,011.72
  5. Step 5: Solve for x
    x = 6,389,158,011.72/101,283.20
  6. Step 6: Final answer
    x = 63,082.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.