Home / 134,140.40-201,210.60-89,817.20

Finding the Fourth Proportional to 134,140.40, 201,210.60 and 89,817.20

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Solution

The fourth proportional to 134,140.40, 201,210.60 and 89,817.20 is: 134,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,140.40 : 201,210.60 = 89,817.20 : x
  2. Step 2: Convert to fraction form
    134,140.40/201,210.60 = 89,817.20/x
  3. Step 3: Cross multiply
    134,140.40x = 201,210.60 × 89,817.20
  4. Step 4: Simplify right side
    134,140.40x = 18,072,172,702.32
  5. Step 5: Solve for x
    x = 18,072,172,702.32/134,140.40
  6. Step 6: Final answer
    x = 134,725.80

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1.5x scale

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.