Home / 154,580.40-231,868.73-87,117.53

Finding the Fourth Proportional to 154,580.40, 231,868.73 and 87,117.53

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Solution

The fourth proportional to 154,580.40, 231,868.73 and 87,117.53 is: 130,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,580.40 : 231,868.73 = 87,117.53 : x
  2. Step 2: Convert to fraction form
    154,580.40/231,868.73 = 87,117.53/x
  3. Step 3: Cross multiply
    154,580.40x = 231,868.73 × 87,117.53
  4. Step 4: Simplify right side
    154,580.40x = 20,199,830,100.29
  5. Step 5: Solve for x
    x = 20,199,830,100.29/154,580.40
  6. Step 6: Final answer
    x = 130,675.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.