Home / 142,666.60-213,999.90-133,335.40

Finding the Fourth Proportional to 142,666.60, 213,999.90 and 133,335.40

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Solution

The fourth proportional to 142,666.60, 213,999.90 and 133,335.40 is: 200,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,666.60 : 213,999.90 = 133,335.40 : x
  2. Step 2: Convert to fraction form
    142,666.60/213,999.90 = 133,335.40/x
  3. Step 3: Cross multiply
    142,666.60x = 213,999.90 × 133,335.40
  4. Step 4: Simplify right side
    142,666.60x = 28,533,762,266.46
  5. Step 5: Solve for x
    x = 28,533,762,266.46/142,666.60
  6. Step 6: Final answer
    x = 200,003.10

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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.