Home / 148,938.14-205,534.62-81,870.14

Finding the Fourth Proportional to 148,938.14, 205,534.62 and 81,870.14

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Solution

The fourth proportional to 148,938.14, 205,534.62 and 81,870.14 is: 112,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,938.14 : 205,534.62 = 81,870.14 : x
  2. Step 2: Convert to fraction form
    148,938.14/205,534.62 = 81,870.14/x
  3. Step 3: Cross multiply
    148,938.14x = 205,534.62 × 81,870.14
  4. Step 4: Simplify right side
    148,938.14x = 16,827,148,114.25
  5. Step 5: Solve for x
    x = 16,827,148,114.25/148,938.14
  6. Step 6: Final answer
    x = 112,980.79

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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.