Home / 130,625.04-180,009.81-88,109.76

Finding the Fourth Proportional to 130,625.04, 180,009.81 and 88,109.76

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Solution

The fourth proportional to 130,625.04, 180,009.81 and 88,109.76 is: 121,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,625.04 : 180,009.81 = 88,109.76 : x
  2. Step 2: Convert to fraction form
    130,625.04/180,009.81 = 88,109.76/x
  3. Step 3: Cross multiply
    130,625.04x = 180,009.81 × 88,109.76
  4. Step 4: Simplify right side
    130,625.04x = 15,860,621,156.75
  5. Step 5: Solve for x
    x = 15,860,621,156.75/130,625.04
  6. Step 6: Final answer
    x = 121,420.99

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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.