Home / 143,312.90-197,320.05-130,026.87

Finding the Fourth Proportional to 143,312.90, 197,320.05 and 130,026.87

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Solution

The fourth proportional to 143,312.90, 197,320.05 and 130,026.87 is: 179,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,312.90 : 197,320.05 = 130,026.87 : x
  2. Step 2: Convert to fraction form
    143,312.90/197,320.05 = 130,026.87/x
  3. Step 3: Cross multiply
    143,312.90x = 197,320.05 × 130,026.87
  4. Step 4: Simplify right side
    143,312.90x = 25,656,908,489.74
  5. Step 5: Solve for x
    x = 25,656,908,489.74/143,312.90
  6. Step 6: Final answer
    x = 179,027.22

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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.