Home / 128,822.40-193,225.50-40,069.08

Finding the Fourth Proportional to 128,822.40, 193,225.50 and 40,069.08

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Solution

The fourth proportional to 128,822.40, 193,225.50 and 40,069.08 is: 60,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,822.40 : 193,225.50 = 40,069.08 : x
  2. Step 2: Convert to fraction form
    128,822.40/193,225.50 = 40,069.08/x
  3. Step 3: Cross multiply
    128,822.40x = 193,225.50 × 40,069.08
  4. Step 4: Simplify right side
    128,822.40x = 7,742,368,017.54
  5. Step 5: Solve for x
    x = 7,742,368,017.54/128,822.40
  6. Step 6: Final answer
    x = 60,101.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.