Home / 103,638.45-155,459.51-37,126.31

Finding the Fourth Proportional to 103,638.45, 155,459.51 and 37,126.31

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Solution

The fourth proportional to 103,638.45, 155,459.51 and 37,126.31 is: 55,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.45 : 155,459.51 = 37,126.31 : x
  2. Step 2: Convert to fraction form
    103,638.45/155,459.51 = 37,126.31/x
  3. Step 3: Cross multiply
    103,638.45x = 155,459.51 × 37,126.31
  4. Step 4: Simplify right side
    103,638.45x = 5,771,637,960.71
  5. Step 5: Solve for x
    x = 5,771,637,960.71/103,638.45
  6. Step 6: Final answer
    x = 55,690.12

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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.