Home / 98,690.16-136,205.40-56,238.96

Finding the Fourth Proportional to 98,690.16, 136,205.40 and 56,238.96

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Solution

The fourth proportional to 98,690.16, 136,205.40 and 56,238.96 is: 77,617.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,690.16 : 136,205.40 = 56,238.96 : x
  2. Step 2: Convert to fraction form
    98,690.16/136,205.40 = 56,238.96/x
  3. Step 3: Cross multiply
    98,690.16x = 136,205.40 × 56,238.96
  4. Step 4: Simplify right side
    98,690.16x = 7,660,050,042.38
  5. Step 5: Solve for x
    x = 7,660,050,042.38/98,690.16
  6. Step 6: Final answer
    x = 77,617.16

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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.