Home / 105,136.02-157,427.55-80,529.30

Finding the Fourth Proportional to 105,136.02, 157,427.55 and 80,529.30

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Solution

The fourth proportional to 105,136.02, 157,427.55 and 80,529.30 is: 120,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,136.02 : 157,427.55 = 80,529.30 : x
  2. Step 2: Convert to fraction form
    105,136.02/157,427.55 = 80,529.30/x
  3. Step 3: Cross multiply
    105,136.02x = 157,427.55 × 80,529.30
  4. Step 4: Simplify right side
    105,136.02x = 12,677,530,402.22
  5. Step 5: Solve for x
    x = 12,677,530,402.22/105,136.02
  6. Step 6: Final answer
    x = 120,582.18

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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.