Home / 130,342.28-179,857.47-72,973.63

Finding the Fourth Proportional to 130,342.28, 179,857.47 and 72,973.63

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Solution

The fourth proportional to 130,342.28, 179,857.47 and 72,973.63 is: 100,695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,342.28 : 179,857.47 = 72,973.63 : x
  2. Step 2: Convert to fraction form
    130,342.28/179,857.47 = 72,973.63/x
  3. Step 3: Cross multiply
    130,342.28x = 179,857.47 × 72,973.63
  4. Step 4: Simplify right side
    130,342.28x = 13,124,852,018.87
  5. Step 5: Solve for x
    x = 13,124,852,018.87/130,342.28
  6. Step 6: Final answer
    x = 100,695.28

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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.