Home / 142,392.02-196,507.10-77,857.41

Finding the Fourth Proportional to 142,392.02, 196,507.10 and 77,857.41

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Solution

The fourth proportional to 142,392.02, 196,507.10 and 77,857.41 is: 107,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,392.02 : 196,507.10 = 77,857.41 : x
  2. Step 2: Convert to fraction form
    142,392.02/196,507.10 = 77,857.41/x
  3. Step 3: Cross multiply
    142,392.02x = 196,507.10 × 77,857.41
  4. Step 4: Simplify right side
    142,392.02x = 15,299,534,332.19
  5. Step 5: Solve for x
    x = 15,299,534,332.19/142,392.02
  6. Step 6: Final answer
    x = 107,446.57

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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.