Home / 92,920.02-128,248.32-55,186.98

Finding the Fourth Proportional to 92,920.02, 128,248.32 and 55,186.98

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Solution

The fourth proportional to 92,920.02, 128,248.32 and 55,186.98 is: 76,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,920.02 : 128,248.32 = 55,186.98 : x
  2. Step 2: Convert to fraction form
    92,920.02/128,248.32 = 55,186.98/x
  3. Step 3: Cross multiply
    92,920.02x = 128,248.32 × 55,186.98
  4. Step 4: Simplify right side
    92,920.02x = 7,077,637,470.87
  5. Step 5: Solve for x
    x = 7,077,637,470.87/92,920.02
  6. Step 6: Final answer
    x = 76,169.13

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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.