Home / 121,965.77-182,711.93-89,886.58

Finding the Fourth Proportional to 121,965.77, 182,711.93 and 89,886.58

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Solution

The fourth proportional to 121,965.77, 182,711.93 and 89,886.58 is: 134,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,965.77 : 182,711.93 = 89,886.58 : x
  2. Step 2: Convert to fraction form
    121,965.77/182,711.93 = 89,886.58/x
  3. Step 3: Cross multiply
    121,965.77x = 182,711.93 × 89,886.58
  4. Step 4: Simplify right side
    121,965.77x = 16,423,349,599.34
  5. Step 5: Solve for x
    x = 16,423,349,599.34/121,965.77
  6. Step 6: Final answer
    x = 134,655.40

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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.