Home / 109,136.68-150,607.07-61,390.01

Finding the Fourth Proportional to 109,136.68, 150,607.07 and 61,390.01

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Solution

The fourth proportional to 109,136.68, 150,607.07 and 61,390.01 is: 84,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,136.68 : 150,607.07 = 61,390.01 : x
  2. Step 2: Convert to fraction form
    109,136.68/150,607.07 = 61,390.01/x
  3. Step 3: Cross multiply
    109,136.68x = 150,607.07 × 61,390.01
  4. Step 4: Simplify right side
    109,136.68x = 9,245,769,602.94
  5. Step 5: Solve for x
    x = 9,245,769,602.94/109,136.68
  6. Step 6: Final answer
    x = 84,717.35

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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.