Home / 145,272.96-218,275.92-139,368.32

Finding the Fourth Proportional to 145,272.96, 218,275.92 and 139,368.32

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Solution

The fourth proportional to 145,272.96, 218,275.92 and 139,368.32 is: 209,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,272.96 : 218,275.92 = 139,368.32 : x
  2. Step 2: Convert to fraction form
    145,272.96/218,275.92 = 139,368.32/x
  3. Step 3: Cross multiply
    145,272.96x = 218,275.92 × 139,368.32
  4. Step 4: Simplify right side
    145,272.96x = 30,420,748,266.85
  5. Step 5: Solve for x
    x = 30,420,748,266.85/145,272.96
  6. Step 6: Final answer
    x = 209,404.06

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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.