Home / 99,117.69-136,720.19-58,802.91

Finding the Fourth Proportional to 99,117.69, 136,720.19 and 58,802.91

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Solution

The fourth proportional to 99,117.69, 136,720.19 and 58,802.91 is: 81,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.69 : 136,720.19 = 58,802.91 : x
  2. Step 2: Convert to fraction form
    99,117.69/136,720.19 = 58,802.91/x
  3. Step 3: Cross multiply
    99,117.69x = 136,720.19 × 58,802.91
  4. Step 4: Simplify right side
    99,117.69x = 8,039,544,662.06
  5. Step 5: Solve for x
    x = 8,039,544,662.06/99,117.69
  6. Step 6: Final answer
    x = 81,111.10

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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.