Home / 215,140.56-296,888.76-117,021.28

Finding the Fourth Proportional to 215,140.56, 296,888.76 and 117,021.28

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Solution

The fourth proportional to 215,140.56, 296,888.76 and 117,021.28 is: 161,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,140.56 : 296,888.76 = 117,021.28 : x
  2. Step 2: Convert to fraction form
    215,140.56/296,888.76 = 117,021.28/x
  3. Step 3: Cross multiply
    215,140.56x = 296,888.76 × 117,021.28
  4. Step 4: Simplify right side
    215,140.56x = 34,742,302,712.81
  5. Step 5: Solve for x
    x = 34,742,302,712.81/215,140.56
  6. Step 6: Final answer
    x = 161,486.53

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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.