Home / 132,638.40-183,035.03-72,207.50

Finding the Fourth Proportional to 132,638.40, 183,035.03 and 72,207.50

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Solution

The fourth proportional to 132,638.40, 183,035.03 and 72,207.50 is: 99,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,638.40 : 183,035.03 = 72,207.50 : x
  2. Step 2: Convert to fraction form
    132,638.40/183,035.03 = 72,207.50/x
  3. Step 3: Cross multiply
    132,638.40x = 183,035.03 × 72,207.50
  4. Step 4: Simplify right side
    132,638.40x = 13,216,500,652.51
  5. Step 5: Solve for x
    x = 13,216,500,652.51/132,638.40
  6. Step 6: Final answer
    x = 99,643.09

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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.