Home / 128,032.40-192,048.60-118,701.20

Finding the Fourth Proportional to 128,032.40, 192,048.60 and 118,701.20

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Solution

The fourth proportional to 128,032.40, 192,048.60 and 118,701.20 is: 178,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,032.40 : 192,048.60 = 118,701.20 : x
  2. Step 2: Convert to fraction form
    128,032.40/192,048.60 = 118,701.20/x
  3. Step 3: Cross multiply
    128,032.40x = 192,048.60 × 118,701.20
  4. Step 4: Simplify right side
    128,032.40x = 22,796,399,278.32
  5. Step 5: Solve for x
    x = 22,796,399,278.32/128,032.40
  6. Step 6: Final answer
    x = 178,051.80

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1.5x scale

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.