Home / 137,136.48-205,710.12-42,358.23

Finding the Fourth Proportional to 137,136.48, 205,710.12 and 42,358.23

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Solution

The fourth proportional to 137,136.48, 205,710.12 and 42,358.23 is: 63,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,136.48 : 205,710.12 = 42,358.23 : x
  2. Step 2: Convert to fraction form
    137,136.48/205,710.12 = 42,358.23/x
  3. Step 3: Cross multiply
    137,136.48x = 205,710.12 × 42,358.23
  4. Step 4: Simplify right side
    137,136.48x = 8,713,516,576.29
  5. Step 5: Solve for x
    x = 8,713,516,576.29/137,136.48
  6. Step 6: Final answer
    x = 63,539.01

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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.