Home / 130,090.95-179,459.75-87,072.24

Finding the Fourth Proportional to 130,090.95, 179,459.75 and 87,072.24

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Solution

The fourth proportional to 130,090.95, 179,459.75 and 87,072.24 is: 120,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,090.95 : 179,459.75 = 87,072.24 : x
  2. Step 2: Convert to fraction form
    130,090.95/179,459.75 = 87,072.24/x
  3. Step 3: Cross multiply
    130,090.95x = 179,459.75 × 87,072.24
  4. Step 4: Simplify right side
    130,090.95x = 15,625,963,312.99
  5. Step 5: Solve for x
    x = 15,625,963,312.99/130,090.95
  6. Step 6: Final answer
    x = 120,115.68

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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.