Home / 144,292.32-215,279.64-129,362.40

Finding the Fourth Proportional to 144,292.32, 215,279.64 and 129,362.40

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Solution

The fourth proportional to 144,292.32, 215,279.64 and 129,362.40 is: 193,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292.32 : 215,279.64 = 129,362.40 : x
  2. Step 2: Convert to fraction form
    144,292.32/215,279.64 = 129,362.40/x
  3. Step 3: Cross multiply
    144,292.32x = 215,279.64 × 129,362.40
  4. Step 4: Simplify right side
    144,292.32x = 27,849,090,901.54
  5. Step 5: Solve for x
    x = 27,849,090,901.54/144,292.32
  6. Step 6: Final answer
    x = 193,004.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.