Home / 142,162.13-213,243.47-36,980.93

Finding the Fourth Proportional to 142,162.13, 213,243.47 and 36,980.93

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Solution

The fourth proportional to 142,162.13, 213,243.47 and 36,980.93 is: 55,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,162.13 : 213,243.47 = 36,980.93 : x
  2. Step 2: Convert to fraction form
    142,162.13/213,243.47 = 36,980.93/x
  3. Step 3: Cross multiply
    142,162.13x = 213,243.47 × 36,980.93
  4. Step 4: Simplify right side
    142,162.13x = 7,885,941,652.12
  5. Step 5: Solve for x
    x = 7,885,941,652.12/142,162.13
  6. Step 6: Final answer
    x = 55,471.47

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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.