Home / 108,437.10-149,643.18-60,690.45

Finding the Fourth Proportional to 108,437.10, 149,643.18 and 60,690.45

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Solution

The fourth proportional to 108,437.10, 149,643.18 and 60,690.45 is: 83,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,437.10 : 149,643.18 = 60,690.45 : x
  2. Step 2: Convert to fraction form
    108,437.10/149,643.18 = 60,690.45/x
  3. Step 3: Cross multiply
    108,437.10x = 149,643.18 × 60,690.45
  4. Step 4: Simplify right side
    108,437.10x = 9,081,911,933.63
  5. Step 5: Solve for x
    x = 9,081,911,933.63/108,437.10
  6. Step 6: Final answer
    x = 83,752.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.