Home / 94,721.86-130,590.55-78,528.03

Finding the Fourth Proportional to 94,721.86, 130,590.55 and 78,528.03

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Solution

The fourth proportional to 94,721.86, 130,590.55 and 78,528.03 is: 108,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,721.86 : 130,590.55 = 78,528.03 : x
  2. Step 2: Convert to fraction form
    94,721.86/130,590.55 = 78,528.03/x
  3. Step 3: Cross multiply
    94,721.86x = 130,590.55 × 78,528.03
  4. Step 4: Simplify right side
    94,721.86x = 10,255,019,191.99
  5. Step 5: Solve for x
    x = 10,255,019,191.99/94,721.86
  6. Step 6: Final answer
    x = 108,264.55

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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.