Home / 326,169.72-489,166.02-89,456.40

Finding the Fourth Proportional to 326,169.72, 489,166.02 and 89,456.40

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Solution

The fourth proportional to 326,169.72, 489,166.02 and 89,456.40 is: 134,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,169.72 : 489,166.02 = 89,456.40 : x
  2. Step 2: Convert to fraction form
    326,169.72/489,166.02 = 89,456.40/x
  3. Step 3: Cross multiply
    326,169.72x = 489,166.02 × 89,456.40
  4. Step 4: Simplify right side
    326,169.72x = 43,759,031,151.53
  5. Step 5: Solve for x
    x = 43,759,031,151.53/326,169.72
  6. Step 6: Final answer
    x = 134,160.31

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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.