Home / 140,066.08-193,290.51-76,403.32

Finding the Fourth Proportional to 140,066.08, 193,290.51 and 76,403.32

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Solution

The fourth proportional to 140,066.08, 193,290.51 and 76,403.32 is: 105,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,066.08 : 193,290.51 = 76,403.32 : x
  2. Step 2: Convert to fraction form
    140,066.08/193,290.51 = 76,403.32/x
  3. Step 3: Cross multiply
    140,066.08x = 193,290.51 × 76,403.32
  4. Step 4: Simplify right side
    140,066.08x = 14,768,036,688.49
  5. Step 5: Solve for x
    x = 14,768,036,688.49/140,066.08
  6. Step 6: Final answer
    x = 105,436.21

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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.