Home / 147,938.96-204,136.80-90,603.92

Finding the Fourth Proportional to 147,938.96, 204,136.80 and 90,603.92

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Solution

The fourth proportional to 147,938.96, 204,136.80 and 90,603.92 is: 125,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,938.96 : 204,136.80 = 90,603.92 : x
  2. Step 2: Convert to fraction form
    147,938.96/204,136.80 = 90,603.92/x
  3. Step 3: Cross multiply
    147,938.96x = 204,136.80 × 90,603.92
  4. Step 4: Simplify right side
    147,938.96x = 18,495,594,296.26
  5. Step 5: Solve for x
    x = 18,495,594,296.26/147,938.96
  6. Step 6: Final answer
    x = 125,021.79

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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.