Home / 117,580.12-176,315.28-42,690.76

Finding the Fourth Proportional to 117,580.12, 176,315.28 and 42,690.76

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Solution

The fourth proportional to 117,580.12, 176,315.28 and 42,690.76 is: 64,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,580.12 : 176,315.28 = 42,690.76 : x
  2. Step 2: Convert to fraction form
    117,580.12/176,315.28 = 42,690.76/x
  3. Step 3: Cross multiply
    117,580.12x = 176,315.28 × 42,690.76
  4. Step 4: Simplify right side
    117,580.12x = 7,527,033,302.81
  5. Step 5: Solve for x
    x = 7,527,033,302.81/117,580.12
  6. Step 6: Final answer
    x = 64,016.21

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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.