Home / 130,581.77-180,258-88,197.71

Finding the Fourth Proportional to 130,581.77, 180,258 and 88,197.71

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Solution

The fourth proportional to 130,581.77, 180,258 and 88,197.71 is: 121,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,581.77 : 180,258 = 88,197.71 : x
  2. Step 2: Convert to fraction form
    130,581.77/180,258 = 88,197.71/x
  3. Step 3: Cross multiply
    130,581.77x = 180,258 × 88,197.71
  4. Step 4: Simplify right side
    130,581.77x = 15,898,342,809.18
  5. Step 5: Solve for x
    x = 15,898,342,809.18/130,581.77
  6. Step 6: Final answer
    x = 121,750.09

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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.