Home / 109,612.49-164,085.80-70,197.30

Finding the Fourth Proportional to 109,612.49, 164,085.80 and 70,197.30

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Solution

The fourth proportional to 109,612.49, 164,085.80 and 70,197.30 is: 105,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,612.49 : 164,085.80 = 70,197.30 : x
  2. Step 2: Convert to fraction form
    109,612.49/164,085.80 = 70,197.30/x
  3. Step 3: Cross multiply
    109,612.49x = 164,085.80 × 70,197.30
  4. Step 4: Simplify right side
    109,612.49x = 11,518,379,777.35
  5. Step 5: Solve for x
    x = 11,518,379,777.35/109,612.49
  6. Step 6: Final answer
    x = 105,082.74

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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.