Home / 145,964.20-218,946.30-124,191.40

Finding the Fourth Proportional to 145,964.20, 218,946.30 and 124,191.40

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Solution

The fourth proportional to 145,964.20, 218,946.30 and 124,191.40 is: 186,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964.20 : 218,946.30 = 124,191.40 : x
  2. Step 2: Convert to fraction form
    145,964.20/218,946.30 = 124,191.40/x
  3. Step 3: Cross multiply
    145,964.20x = 218,946.30 × 124,191.40
  4. Step 4: Simplify right side
    145,964.20x = 27,191,247,521.82
  5. Step 5: Solve for x
    x = 27,191,247,521.82/145,964.20
  6. Step 6: Final answer
    x = 186,287.10

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1.5x scale

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.