Home / 142,868.94-214,259.66-98,779.02

Finding the Fourth Proportional to 142,868.94, 214,259.66 and 98,779.02

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Solution

The fourth proportional to 142,868.94, 214,259.66 and 98,779.02 is: 148,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,868.94 : 214,259.66 = 98,779.02 : x
  2. Step 2: Convert to fraction form
    142,868.94/214,259.66 = 98,779.02/x
  3. Step 3: Cross multiply
    142,868.94x = 214,259.66 × 98,779.02
  4. Step 4: Simplify right side
    142,868.94x = 21,164,359,240.33
  5. Step 5: Solve for x
    x = 21,164,359,240.33/142,868.94
  6. Step 6: Final answer
    x = 148,138.28

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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.