Home / 98,055.48-135,152.10-75,077.40

Finding the Fourth Proportional to 98,055.48, 135,152.10 and 75,077.40

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Solution

The fourth proportional to 98,055.48, 135,152.10 and 75,077.40 is: 103,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,055.48 : 135,152.10 = 75,077.40 : x
  2. Step 2: Convert to fraction form
    98,055.48/135,152.10 = 75,077.40/x
  3. Step 3: Cross multiply
    98,055.48x = 135,152.10 × 75,077.40
  4. Step 4: Simplify right side
    98,055.48x = 10,146,868,272.54
  5. Step 5: Solve for x
    x = 10,146,868,272.54/98,055.48
  6. Step 6: Final answer
    x = 103,480.89

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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.