Home / 145,820.40-218,730.60-93,073.20

Finding the Fourth Proportional to 145,820.40, 218,730.60 and 93,073.20

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Solution

The fourth proportional to 145,820.40, 218,730.60 and 93,073.20 is: 139,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,820.40 : 218,730.60 = 93,073.20 : x
  2. Step 2: Convert to fraction form
    145,820.40/218,730.60 = 93,073.20/x
  3. Step 3: Cross multiply
    145,820.40x = 218,730.60 × 93,073.20
  4. Step 4: Simplify right side
    145,820.40x = 20,357,956,879.92
  5. Step 5: Solve for x
    x = 20,357,956,879.92/145,820.40
  6. Step 6: Final answer
    x = 139,609.80

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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.