Home / 98,800.12-136,347.18-54,088.12

Finding the Fourth Proportional to 98,800.12, 136,347.18 and 54,088.12

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Solution

The fourth proportional to 98,800.12, 136,347.18 and 54,088.12 is: 74,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,800.12 : 136,347.18 = 54,088.12 : x
  2. Step 2: Convert to fraction form
    98,800.12/136,347.18 = 54,088.12/x
  3. Step 3: Cross multiply
    98,800.12x = 136,347.18 × 54,088.12
  4. Step 4: Simplify right side
    98,800.12x = 7,374,762,633.50
  5. Step 5: Solve for x
    x = 7,374,762,633.50/98,800.12
  6. Step 6: Final answer
    x = 74,643.26

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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.