Home / 158,878.13-219,271.28-91,810.13

Finding the Fourth Proportional to 158,878.13, 219,271.28 and 91,810.13

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Solution

The fourth proportional to 158,878.13, 219,271.28 and 91,810.13 is: 126,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,878.13 : 219,271.28 = 91,810.13 : x
  2. Step 2: Convert to fraction form
    158,878.13/219,271.28 = 91,810.13/x
  3. Step 3: Cross multiply
    158,878.13x = 219,271.28 × 91,810.13
  4. Step 4: Simplify right side
    158,878.13x = 20,131,323,166.66
  5. Step 5: Solve for x
    x = 20,131,323,166.66/158,878.13
  6. Step 6: Final answer
    x = 126,709.22

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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.