Home / 130,201.02-179,690.70-79,217.40

Finding the Fourth Proportional to 130,201.02, 179,690.70 and 79,217.40

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Solution

The fourth proportional to 130,201.02, 179,690.70 and 79,217.40 is: 109,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,201.02 : 179,690.70 = 79,217.40 : x
  2. Step 2: Convert to fraction form
    130,201.02/179,690.70 = 79,217.40/x
  3. Step 3: Cross multiply
    130,201.02x = 179,690.70 × 79,217.40
  4. Step 4: Simplify right side
    130,201.02x = 14,234,630,058.18
  5. Step 5: Solve for x
    x = 14,234,630,058.18/130,201.02
  6. Step 6: Final answer
    x = 109,328.10

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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.