Home / 108,075.12-149,117.40-63,354.48

Finding the Fourth Proportional to 108,075.12, 149,117.40 and 63,354.48

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Solution

The fourth proportional to 108,075.12, 149,117.40 and 63,354.48 is: 87,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,075.12 : 149,117.40 = 63,354.48 : x
  2. Step 2: Convert to fraction form
    108,075.12/149,117.40 = 63,354.48/x
  3. Step 3: Cross multiply
    108,075.12x = 149,117.40 × 63,354.48
  4. Step 4: Simplify right side
    108,075.12x = 9,447,255,335.95
  5. Step 5: Solve for x
    x = 9,447,255,335.95/108,075.12
  6. Step 6: Final answer
    x = 87,413.79

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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.