Home / 99,132.40-136,802.79-53,810.35

Finding the Fourth Proportional to 99,132.40, 136,802.79 and 53,810.35

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Solution

The fourth proportional to 99,132.40, 136,802.79 and 53,810.35 is: 74,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,132.40 : 136,802.79 = 53,810.35 : x
  2. Step 2: Convert to fraction form
    99,132.40/136,802.79 = 53,810.35/x
  3. Step 3: Cross multiply
    99,132.40x = 136,802.79 × 53,810.35
  4. Step 4: Simplify right side
    99,132.40x = 7,361,406,010.88
  5. Step 5: Solve for x
    x = 7,361,406,010.88/99,132.40
  6. Step 6: Final answer
    x = 74,258.33

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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.