Home / 153,734.78-212,121.59-93,337.18

Finding the Fourth Proportional to 153,734.78, 212,121.59 and 93,337.18

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Solution

The fourth proportional to 153,734.78, 212,121.59 and 93,337.18 is: 128,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,734.78 : 212,121.59 = 93,337.18 : x
  2. Step 2: Convert to fraction form
    153,734.78/212,121.59 = 93,337.18/x
  3. Step 3: Cross multiply
    153,734.78x = 212,121.59 × 93,337.18
  4. Step 4: Simplify right side
    153,734.78x = 19,798,831,027.72
  5. Step 5: Solve for x
    x = 19,798,831,027.72/153,734.78
  6. Step 6: Final answer
    x = 128,785.63

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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.