Home / 106,745.17-147,308.47-61,422.25

Finding the Fourth Proportional to 106,745.17, 147,308.47 and 61,422.25

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Solution

The fourth proportional to 106,745.17, 147,308.47 and 61,422.25 is: 84,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,745.17 : 147,308.47 = 61,422.25 : x
  2. Step 2: Convert to fraction form
    106,745.17/147,308.47 = 61,422.25/x
  3. Step 3: Cross multiply
    106,745.17x = 147,308.47 × 61,422.25
  4. Step 4: Simplify right side
    106,745.17x = 9,048,017,671.46
  5. Step 5: Solve for x
    x = 9,048,017,671.46/106,745.17
  6. Step 6: Final answer
    x = 84,762.78

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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.