Home / 110,689.12-152,770.50-65,364.16

Finding the Fourth Proportional to 110,689.12, 152,770.50 and 65,364.16

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Solution

The fourth proportional to 110,689.12, 152,770.50 and 65,364.16 is: 90,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,689.12 : 152,770.50 = 65,364.16 : x
  2. Step 2: Convert to fraction form
    110,689.12/152,770.50 = 65,364.16/x
  3. Step 3: Cross multiply
    110,689.12x = 152,770.50 × 65,364.16
  4. Step 4: Simplify right side
    110,689.12x = 9,985,715,405.28
  5. Step 5: Solve for x
    x = 9,985,715,405.28/110,689.12
  6. Step 6: Final answer
    x = 90,214.06

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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.