Home / 153,746.10-212,084.33-90,071.60

Finding the Fourth Proportional to 153,746.10, 212,084.33 and 90,071.60

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Solution

The fourth proportional to 153,746.10, 212,084.33 and 90,071.60 is: 124,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,746.10 : 212,084.33 = 90,071.60 : x
  2. Step 2: Convert to fraction form
    153,746.10/212,084.33 = 90,071.60/x
  3. Step 3: Cross multiply
    153,746.10x = 212,084.33 × 90,071.60
  4. Step 4: Simplify right side
    153,746.10x = 19,102,773,427.25
  5. Step 5: Solve for x
    x = 19,102,773,427.25/153,746.10
  6. Step 6: Final answer
    x = 124,248.83

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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.