Home / 155,289.29-214,277.81-90,743.04

Finding the Fourth Proportional to 155,289.29, 214,277.81 and 90,743.04

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Solution

The fourth proportional to 155,289.29, 214,277.81 and 90,743.04 is: 125,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,289.29 : 214,277.81 = 90,743.04 : x
  2. Step 2: Convert to fraction form
    155,289.29/214,277.81 = 90,743.04/x
  3. Step 3: Cross multiply
    155,289.29x = 214,277.81 × 90,743.04
  4. Step 4: Simplify right side
    155,289.29x = 19,444,219,430.23
  5. Step 5: Solve for x
    x = 19,444,219,430.23/155,289.29
  6. Step 6: Final answer
    x = 125,212.89

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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.