Home / 142,040.61-213,142.32-57,785.22

Finding the Fourth Proportional to 142,040.61, 213,142.32 and 57,785.22

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Solution

The fourth proportional to 142,040.61, 213,142.32 and 57,785.22 is: 86,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.61 : 213,142.32 = 57,785.22 : x
  2. Step 2: Convert to fraction form
    142,040.61/213,142.32 = 57,785.22/x
  3. Step 3: Cross multiply
    142,040.61x = 213,142.32 × 57,785.22
  4. Step 4: Simplify right side
    142,040.61x = 12,316,475,852.51
  5. Step 5: Solve for x
    x = 12,316,475,852.51/142,040.61
  6. Step 6: Final answer
    x = 86,710.95

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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.