Home / 145,407.40-218,123.52-40,226.20

Finding the Fourth Proportional to 145,407.40, 218,123.52 and 40,226.20

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Solution

The fourth proportional to 145,407.40, 218,123.52 and 40,226.20 is: 60,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,407.40 : 218,123.52 = 40,226.20 : x
  2. Step 2: Convert to fraction form
    145,407.40/218,123.52 = 40,226.20/x
  3. Step 3: Cross multiply
    145,407.40x = 218,123.52 × 40,226.20
  4. Step 4: Simplify right side
    145,407.40x = 8,774,280,340.22
  5. Step 5: Solve for x
    x = 8,774,280,340.22/145,407.40
  6. Step 6: Final answer
    x = 60,342.74

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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.