Home / 109,250.70-163,876.05-86,700.30

Finding the Fourth Proportional to 109,250.70, 163,876.05 and 86,700.30

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Solution

The fourth proportional to 109,250.70, 163,876.05 and 86,700.30 is: 130,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,250.70 : 163,876.05 = 86,700.30 : x
  2. Step 2: Convert to fraction form
    109,250.70/163,876.05 = 86,700.30/x
  3. Step 3: Cross multiply
    109,250.70x = 163,876.05 × 86,700.30
  4. Step 4: Simplify right side
    109,250.70x = 14,208,102,697.82
  5. Step 5: Solve for x
    x = 14,208,102,697.82/109,250.70
  6. Step 6: Final answer
    x = 130,050.45

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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.