Home / 145,920.08-218,860.50-40,749.68

Finding the Fourth Proportional to 145,920.08, 218,860.50 and 40,749.68

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Solution

The fourth proportional to 145,920.08, 218,860.50 and 40,749.68 is: 61,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,920.08 : 218,860.50 = 40,749.68 : x
  2. Step 2: Convert to fraction form
    145,920.08/218,860.50 = 40,749.68/x
  3. Step 3: Cross multiply
    145,920.08x = 218,860.50 × 40,749.68
  4. Step 4: Simplify right side
    145,920.08x = 8,918,495,339.64
  5. Step 5: Solve for x
    x = 8,918,495,339.64/145,920.08
  6. Step 6: Final answer
    x = 61,119.04

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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.