Home / 130,276.34-179,638.58-84,870.12

Finding the Fourth Proportional to 130,276.34, 179,638.58 and 84,870.12

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Solution

The fourth proportional to 130,276.34, 179,638.58 and 84,870.12 is: 117,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,276.34 : 179,638.58 = 84,870.12 : x
  2. Step 2: Convert to fraction form
    130,276.34/179,638.58 = 84,870.12/x
  3. Step 3: Cross multiply
    130,276.34x = 179,638.58 × 84,870.12
  4. Step 4: Simplify right side
    130,276.34x = 15,245,947,392.13
  5. Step 5: Solve for x
    x = 15,245,947,392.13/130,276.34
  6. Step 6: Final answer
    x = 117,027.76

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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.