Home / 122,037.40-183,165.45-105,416.20

Finding the Fourth Proportional to 122,037.40, 183,165.45 and 105,416.20

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Solution

The fourth proportional to 122,037.40, 183,165.45 and 105,416.20 is: 158,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,037.40 : 183,165.45 = 105,416.20 : x
  2. Step 2: Convert to fraction form
    122,037.40/183,165.45 = 105,416.20/x
  3. Step 3: Cross multiply
    122,037.40x = 183,165.45 × 105,416.20
  4. Step 4: Simplify right side
    122,037.40x = 19,308,605,710.29
  5. Step 5: Solve for x
    x = 19,308,605,710.29/122,037.40
  6. Step 6: Final answer
    x = 158,218.76

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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.