Home / 155,376.19-214,417.02-87,393.15

Finding the Fourth Proportional to 155,376.19, 214,417.02 and 87,393.15

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Solution

The fourth proportional to 155,376.19, 214,417.02 and 87,393.15 is: 120,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,376.19 : 214,417.02 = 87,393.15 : x
  2. Step 2: Convert to fraction form
    155,376.19/214,417.02 = 87,393.15/x
  3. Step 3: Cross multiply
    155,376.19x = 214,417.02 × 87,393.15
  4. Step 4: Simplify right side
    155,376.19x = 18,738,578,791.41
  5. Step 5: Solve for x
    x = 18,738,578,791.41/155,376.19
  6. Step 6: Final answer
    x = 120,601.35

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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.