Home / 137,360.15-205,671.08-87,168.50

Finding the Fourth Proportional to 137,360.15, 205,671.08 and 87,168.50

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Solution

The fourth proportional to 137,360.15, 205,671.08 and 87,168.50 is: 130,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,360.15 : 205,671.08 = 87,168.50 : x
  2. Step 2: Convert to fraction form
    137,360.15/205,671.08 = 87,168.50/x
  3. Step 3: Cross multiply
    137,360.15x = 205,671.08 × 87,168.50
  4. Step 4: Simplify right side
    137,360.15x = 17,928,038,726.55
  5. Step 5: Solve for x
    x = 17,928,038,726.55/137,360.15
  6. Step 6: Final answer
    x = 130,518.49

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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.