Home / 112,711.37-168,817.84-77,088.24

Finding the Fourth Proportional to 112,711.37, 168,817.84 and 77,088.24

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Solution

The fourth proportional to 112,711.37, 168,817.84 and 77,088.24 is: 115,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,711.37 : 168,817.84 = 77,088.24 : x
  2. Step 2: Convert to fraction form
    112,711.37/168,817.84 = 77,088.24/x
  3. Step 3: Cross multiply
    112,711.37x = 168,817.84 × 77,088.24
  4. Step 4: Simplify right side
    112,711.37x = 13,013,869,973.48
  5. Step 5: Solve for x
    x = 13,013,869,973.48/112,711.37
  6. Step 6: Final answer
    x = 115,461.91

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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.