Home / 142,287.10-213,430.65-133,071.10

Finding the Fourth Proportional to 142,287.10, 213,430.65 and 133,071.10

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Solution

The fourth proportional to 142,287.10, 213,430.65 and 133,071.10 is: 199,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,287.10 : 213,430.65 = 133,071.10 : x
  2. Step 2: Convert to fraction form
    142,287.10/213,430.65 = 133,071.10/x
  3. Step 3: Cross multiply
    142,287.10x = 213,430.65 × 133,071.10
  4. Step 4: Simplify right side
    142,287.10x = 28,401,451,369.22
  5. Step 5: Solve for x
    x = 28,401,451,369.22/142,287.10
  6. Step 6: Final answer
    x = 199,606.65

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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.