Home / 202,136.40-302,876.55-127,122.30

Finding the Fourth Proportional to 202,136.40, 302,876.55 and 127,122.30

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Solution

The fourth proportional to 202,136.40, 302,876.55 and 127,122.30 is: 190,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,136.40 : 302,876.55 = 127,122.30 : x
  2. Step 2: Convert to fraction form
    202,136.40/302,876.55 = 127,122.30/x
  3. Step 3: Cross multiply
    202,136.40x = 302,876.55 × 127,122.30
  4. Step 4: Simplify right side
    202,136.40x = 38,502,363,652.07
  5. Step 5: Solve for x
    x = 38,502,363,652.07/202,136.40
  6. Step 6: Final answer
    x = 190,477.14

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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.