Home / 147,037.63-220,279.15-86,886.76

Finding the Fourth Proportional to 147,037.63, 220,279.15 and 86,886.76

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Solution

The fourth proportional to 147,037.63, 220,279.15 and 86,886.76 is: 130,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,037.63 : 220,279.15 = 86,886.76 : x
  2. Step 2: Convert to fraction form
    147,037.63/220,279.15 = 86,886.76/x
  3. Step 3: Cross multiply
    147,037.63x = 220,279.15 × 86,886.76
  4. Step 4: Simplify right side
    147,037.63x = 19,139,341,639.05
  5. Step 5: Solve for x
    x = 19,139,341,639.05/147,037.63
  6. Step 6: Final answer
    x = 130,166.28

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1.5x scale

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.