Home / 132,835.70-183,312-72,406.34

Finding the Fourth Proportional to 132,835.70, 183,312 and 72,406.34

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Solution

The fourth proportional to 132,835.70, 183,312 and 72,406.34 is: 99,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,835.70 : 183,312 = 72,406.34 : x
  2. Step 2: Convert to fraction form
    132,835.70/183,312 = 72,406.34/x
  3. Step 3: Cross multiply
    132,835.70x = 183,312 × 72,406.34
  4. Step 4: Simplify right side
    132,835.70x = 13,272,950,998.08
  5. Step 5: Solve for x
    x = 13,272,950,998.08/132,835.70
  6. Step 6: Final answer
    x = 99,920.06

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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.