Home / 142,440.02-213,509.36-53,655.12

Finding the Fourth Proportional to 142,440.02, 213,509.36 and 53,655.12

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Solution

The fourth proportional to 142,440.02, 213,509.36 and 53,655.12 is: 80,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,440.02 : 213,509.36 = 53,655.12 : x
  2. Step 2: Convert to fraction form
    142,440.02/213,509.36 = 53,655.12/x
  3. Step 3: Cross multiply
    142,440.02x = 213,509.36 × 53,655.12
  4. Step 4: Simplify right side
    142,440.02x = 11,455,870,331.92
  5. Step 5: Solve for x
    x = 11,455,870,331.92/142,440.02
  6. Step 6: Final answer
    x = 80,425.92

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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.