Home / 145,247.40-218,000.70-125,548.20

Finding the Fourth Proportional to 145,247.40, 218,000.70 and 125,548.20

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Solution

The fourth proportional to 145,247.40, 218,000.70 and 125,548.20 is: 188,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,247.40 : 218,000.70 = 125,548.20 : x
  2. Step 2: Convert to fraction form
    145,247.40/218,000.70 = 125,548.20/x
  3. Step 3: Cross multiply
    145,247.40x = 218,000.70 × 125,548.20
  4. Step 4: Simplify right side
    145,247.40x = 27,369,595,483.74
  5. Step 5: Solve for x
    x = 27,369,595,483.74/145,247.40
  6. Step 6: Final answer
    x = 188,434.32

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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.