Home / 132,809.24-183,271.40-72,378.60

Finding the Fourth Proportional to 132,809.24, 183,271.40 and 72,378.60

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Solution

The fourth proportional to 132,809.24, 183,271.40 and 72,378.60 is: 99,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,809.24 : 183,271.40 = 72,378.60 : x
  2. Step 2: Convert to fraction form
    132,809.24/183,271.40 = 72,378.60/x
  3. Step 3: Cross multiply
    132,809.24x = 183,271.40 × 72,378.60
  4. Step 4: Simplify right side
    132,809.24x = 13,264,927,352.04
  5. Step 5: Solve for x
    x = 13,264,927,352.04/132,809.24
  6. Step 6: Final answer
    x = 99,879.55

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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.