Home / 229,972.48-317,357.88-128,014.48

Finding the Fourth Proportional to 229,972.48, 317,357.88 and 128,014.48

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Solution

The fourth proportional to 229,972.48, 317,357.88 and 128,014.48 is: 176,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,972.48 : 317,357.88 = 128,014.48 : x
  2. Step 2: Convert to fraction form
    229,972.48/317,357.88 = 128,014.48/x
  3. Step 3: Cross multiply
    229,972.48x = 317,357.88 × 128,014.48
  4. Step 4: Simplify right side
    229,972.48x = 40,626,403,982.10
  5. Step 5: Solve for x
    x = 40,626,403,982.10/229,972.48
  6. Step 6: Final answer
    x = 176,657.68

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1.5x scale

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.