Home / 109,306.40-163,959.59-30,426.77

Finding the Fourth Proportional to 109,306.40, 163,959.59 and 30,426.77

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Solution

The fourth proportional to 109,306.40, 163,959.59 and 30,426.77 is: 45,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,306.40 : 163,959.59 = 30,426.77 : x
  2. Step 2: Convert to fraction form
    109,306.40/163,959.59 = 30,426.77/x
  3. Step 3: Cross multiply
    109,306.40x = 163,959.59 × 30,426.77
  4. Step 4: Simplify right side
    109,306.40x = 4,988,761,220.19
  5. Step 5: Solve for x
    x = 4,988,761,220.19/109,306.40
  6. Step 6: Final answer
    x = 45,640.16

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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.