Home / 147,915.60-221,743.80-88,688.40

Finding the Fourth Proportional to 147,915.60, 221,743.80 and 88,688.40

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Solution

The fourth proportional to 147,915.60, 221,743.80 and 88,688.40 is: 132,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,915.60 : 221,743.80 = 88,688.40 : x
  2. Step 2: Convert to fraction form
    147,915.60/221,743.80 = 88,688.40/x
  3. Step 3: Cross multiply
    147,915.60x = 221,743.80 × 88,688.40
  4. Step 4: Simplify right side
    147,915.60x = 19,666,102,831.92
  5. Step 5: Solve for x
    x = 19,666,102,831.92/147,915.60
  6. Step 6: Final answer
    x = 132,954.89

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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.