Home / 98,730.11-136,105.84-70,386.59

Finding the Fourth Proportional to 98,730.11, 136,105.84 and 70,386.59

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Solution

The fourth proportional to 98,730.11, 136,105.84 and 70,386.59 is: 97,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,730.11 : 136,105.84 = 70,386.59 : x
  2. Step 2: Convert to fraction form
    98,730.11/136,105.84 = 70,386.59/x
  3. Step 3: Cross multiply
    98,730.11x = 136,105.84 × 70,386.59
  4. Step 4: Simplify right side
    98,730.11x = 9,580,025,956.69
  5. Step 5: Solve for x
    x = 9,580,025,956.69/98,730.11
  6. Step 6: Final answer
    x = 97,032.47

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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.