Home / 142,430.47-196,423.99-122,280.91

Finding the Fourth Proportional to 142,430.47, 196,423.99 and 122,280.91

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Solution

The fourth proportional to 142,430.47, 196,423.99 and 122,280.91 is: 168,636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,430.47 : 196,423.99 = 122,280.91 : x
  2. Step 2: Convert to fraction form
    142,430.47/196,423.99 = 122,280.91/x
  3. Step 3: Cross multiply
    142,430.47x = 196,423.99 × 122,280.91
  4. Step 4: Simplify right side
    142,430.47x = 24,018,904,243.03
  5. Step 5: Solve for x
    x = 24,018,904,243.03/142,430.47
  6. Step 6: Final answer
    x = 168,636.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.