Home / 130,381.74-179,929.35-85,088.70

Finding the Fourth Proportional to 130,381.74, 179,929.35 and 85,088.70

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Solution

The fourth proportional to 130,381.74, 179,929.35 and 85,088.70 is: 117,424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,381.74 : 179,929.35 = 85,088.70 : x
  2. Step 2: Convert to fraction form
    130,381.74/179,929.35 = 85,088.70/x
  3. Step 3: Cross multiply
    130,381.74x = 179,929.35 × 85,088.70
  4. Step 4: Simplify right side
    130,381.74x = 15,309,954,483.35
  5. Step 5: Solve for x
    x = 15,309,954,483.35/130,381.74
  6. Step 6: Final answer
    x = 117,424.07

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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.