Home / 98,798.88-136,341.18-56,358.12

Finding the Fourth Proportional to 98,798.88, 136,341.18 and 56,358.12

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Solution

The fourth proportional to 98,798.88, 136,341.18 and 56,358.12 is: 77,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,798.88 : 136,341.18 = 56,358.12 : x
  2. Step 2: Convert to fraction form
    98,798.88/136,341.18 = 56,358.12/x
  3. Step 3: Cross multiply
    98,798.88x = 136,341.18 × 56,358.12
  4. Step 4: Simplify right side
    98,798.88x = 7,683,932,583.38
  5. Step 5: Solve for x
    x = 7,683,932,583.38/98,798.88
  6. Step 6: Final answer
    x = 77,773.48

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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.