Home / 103,639.76-155,461.47-37,127.63

Finding the Fourth Proportional to 103,639.76, 155,461.47 and 37,127.63

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Solution

The fourth proportional to 103,639.76, 155,461.47 and 37,127.63 is: 55,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.76 : 155,461.47 = 37,127.63 : x
  2. Step 2: Convert to fraction form
    103,639.76/155,461.47 = 37,127.63/x
  3. Step 3: Cross multiply
    103,639.76x = 155,461.47 × 37,127.63
  4. Step 4: Simplify right side
    103,639.76x = 5,771,915,937.42
  5. Step 5: Solve for x
    x = 5,771,915,937.42/103,639.76
  6. Step 6: Final answer
    x = 55,692.10

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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.