Home / 98,746.12-136,127.92-70,402.60

Finding the Fourth Proportional to 98,746.12, 136,127.92 and 70,402.60

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Solution

The fourth proportional to 98,746.12, 136,127.92 and 70,402.60 is: 97,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,746.12 : 136,127.92 = 70,402.60 : x
  2. Step 2: Convert to fraction form
    98,746.12/136,127.92 = 70,402.60/x
  3. Step 3: Cross multiply
    98,746.12x = 136,127.92 × 70,402.60
  4. Step 4: Simplify right side
    98,746.12x = 9,583,759,500.59
  5. Step 5: Solve for x
    x = 9,583,759,500.59/98,746.12
  6. Step 6: Final answer
    x = 97,054.54

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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.