Home / 153,709.54-212,083.04-93,278.81

Finding the Fourth Proportional to 153,709.54, 212,083.04 and 93,278.81

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Solution

The fourth proportional to 153,709.54, 212,083.04 and 93,278.81 is: 128,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,709.54 : 212,083.04 = 93,278.81 : x
  2. Step 2: Convert to fraction form
    153,709.54/212,083.04 = 93,278.81/x
  3. Step 3: Cross multiply
    153,709.54x = 212,083.04 × 93,278.81
  4. Step 4: Simplify right side
    153,709.54x = 19,782,854,355.79
  5. Step 5: Solve for x
    x = 19,782,854,355.79/153,709.54
  6. Step 6: Final answer
    x = 128,702.84

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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.