Home / 119,904.04-165,531.02-77,486.77

Finding the Fourth Proportional to 119,904.04, 165,531.02 and 77,486.77

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Solution

The fourth proportional to 119,904.04, 165,531.02 and 77,486.77 is: 106,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,904.04 : 165,531.02 = 77,486.77 : x
  2. Step 2: Convert to fraction form
    119,904.04/165,531.02 = 77,486.77/x
  3. Step 3: Cross multiply
    119,904.04x = 165,531.02 × 77,486.77
  4. Step 4: Simplify right side
    119,904.04x = 12,826,464,074.61
  5. Step 5: Solve for x
    x = 12,826,464,074.61/119,904.04
  6. Step 6: Final answer
    x = 106,972.74

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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.