Home / 132,831.48-183,307.56-72,400.89

Finding the Fourth Proportional to 132,831.48, 183,307.56 and 72,400.89

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Solution

The fourth proportional to 132,831.48, 183,307.56 and 72,400.89 is: 99,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,831.48 : 183,307.56 = 72,400.89 : x
  2. Step 2: Convert to fraction form
    132,831.48/183,307.56 = 72,400.89/x
  3. Step 3: Cross multiply
    132,831.48x = 183,307.56 × 72,400.89
  4. Step 4: Simplify right side
    132,831.48x = 13,271,630,487.73
  5. Step 5: Solve for x
    x = 13,271,630,487.73/132,831.48
  6. Step 6: Final answer
    x = 99,913.29

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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.