Home / 148,943.40-223,415.10-85,698.60

Finding the Fourth Proportional to 148,943.40, 223,415.10 and 85,698.60

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Solution

The fourth proportional to 148,943.40, 223,415.10 and 85,698.60 is: 128,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,943.40 : 223,415.10 = 85,698.60 : x
  2. Step 2: Convert to fraction form
    148,943.40/223,415.10 = 85,698.60/x
  3. Step 3: Cross multiply
    148,943.40x = 223,415.10 × 85,698.60
  4. Step 4: Simplify right side
    148,943.40x = 19,146,361,288.86
  5. Step 5: Solve for x
    x = 19,146,361,288.86/148,943.40
  6. Step 6: Final answer
    x = 128,547.90

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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.