Home / 132,859.12-183,342.63-72,427.45

Finding the Fourth Proportional to 132,859.12, 183,342.63 and 72,427.45

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Solution

The fourth proportional to 132,859.12, 183,342.63 and 72,427.45 is: 99,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,859.12 : 183,342.63 = 72,427.45 : x
  2. Step 2: Convert to fraction form
    132,859.12/183,342.63 = 72,427.45/x
  3. Step 3: Cross multiply
    132,859.12x = 183,342.63 × 72,427.45
  4. Step 4: Simplify right side
    132,859.12x = 13,279,039,167.19
  5. Step 5: Solve for x
    x = 13,279,039,167.19/132,859.12
  6. Step 6: Final answer
    x = 99,948.27

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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.