Home / 109,895.10-164,842.65-72,497.40

Finding the Fourth Proportional to 109,895.10, 164,842.65 and 72,497.40

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Solution

The fourth proportional to 109,895.10, 164,842.65 and 72,497.40 is: 108,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,895.10 : 164,842.65 = 72,497.40 : x
  2. Step 2: Convert to fraction form
    109,895.10/164,842.65 = 72,497.40/x
  3. Step 3: Cross multiply
    109,895.10x = 164,842.65 × 72,497.40
  4. Step 4: Simplify right side
    109,895.10x = 11,950,663,534.11
  5. Step 5: Solve for x
    x = 11,950,663,534.11/109,895.10
  6. Step 6: Final answer
    x = 108,746.10

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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.