Home / 103,038.07-142,193.97-67,207.51

Finding the Fourth Proportional to 103,038.07, 142,193.97 and 67,207.51

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Solution

The fourth proportional to 103,038.07, 142,193.97 and 67,207.51 is: 92,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038.07 : 142,193.97 = 67,207.51 : x
  2. Step 2: Convert to fraction form
    103,038.07/142,193.97 = 67,207.51/x
  3. Step 3: Cross multiply
    103,038.07x = 142,193.97 × 67,207.51
  4. Step 4: Simplify right side
    103,038.07x = 9,556,502,660.71
  5. Step 5: Solve for x
    x = 9,556,502,660.71/103,038.07
  6. Step 6: Final answer
    x = 92,747.30

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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.