Home / 144,507.20-216,602.64-74,390.40

Finding the Fourth Proportional to 144,507.20, 216,602.64 and 74,390.40

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Solution

The fourth proportional to 144,507.20, 216,602.64 and 74,390.40 is: 111,504.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,507.20 : 216,602.64 = 74,390.40 : x
  2. Step 2: Convert to fraction form
    144,507.20/216,602.64 = 74,390.40/x
  3. Step 3: Cross multiply
    144,507.20x = 216,602.64 × 74,390.40
  4. Step 4: Simplify right side
    144,507.20x = 16,113,157,030.66
  5. Step 5: Solve for x
    x = 16,113,157,030.66/144,507.20
  6. Step 6: Final answer
    x = 111,504.18

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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.