Home / 144,636.80-216,955.20-51,130.40

Finding the Fourth Proportional to 144,636.80, 216,955.20 and 51,130.40

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Solution

The fourth proportional to 144,636.80, 216,955.20 and 51,130.40 is: 76,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,636.80 : 216,955.20 = 51,130.40 : x
  2. Step 2: Convert to fraction form
    144,636.80/216,955.20 = 51,130.40/x
  3. Step 3: Cross multiply
    144,636.80x = 216,955.20 × 51,130.40
  4. Step 4: Simplify right side
    144,636.80x = 11,093,006,158.08
  5. Step 5: Solve for x
    x = 11,093,006,158.08/144,636.80
  6. Step 6: Final answer
    x = 76,695.60

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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.