Home / 116,378.88-160,605.12-66,077.76

Finding the Fourth Proportional to 116,378.88, 160,605.12 and 66,077.76

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Solution

The fourth proportional to 116,378.88, 160,605.12 and 66,077.76 is: 91,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,378.88 : 160,605.12 = 66,077.76 : x
  2. Step 2: Convert to fraction form
    116,378.88/160,605.12 = 66,077.76/x
  3. Step 3: Cross multiply
    116,378.88x = 160,605.12 × 66,077.76
  4. Step 4: Simplify right side
    116,378.88x = 10,612,426,574.13
  5. Step 5: Solve for x
    x = 10,612,426,574.13/116,378.88
  6. Step 6: Final answer
    x = 91,188.60

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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.