Home / 117,206.04-161,592.12-74,690.76

Finding the Fourth Proportional to 117,206.04, 161,592.12 and 74,690.76

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Solution

The fourth proportional to 117,206.04, 161,592.12 and 74,690.76 is: 102,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,206.04 : 161,592.12 = 74,690.76 : x
  2. Step 2: Convert to fraction form
    117,206.04/161,592.12 = 74,690.76/x
  3. Step 3: Cross multiply
    117,206.04x = 161,592.12 × 74,690.76
  4. Step 4: Simplify right side
    117,206.04x = 12,069,438,252.81
  5. Step 5: Solve for x
    x = 12,069,438,252.81/117,206.04
  6. Step 6: Final answer
    x = 102,976.25

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1.5x scale

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.