Home / 120,688.84-181,038.12-57,476.44

Finding the Fourth Proportional to 120,688.84, 181,038.12 and 57,476.44

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Solution

The fourth proportional to 120,688.84, 181,038.12 and 57,476.44 is: 86,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,688.84 : 181,038.12 = 57,476.44 : x
  2. Step 2: Convert to fraction form
    120,688.84/181,038.12 = 57,476.44/x
  3. Step 3: Cross multiply
    120,688.84x = 181,038.12 × 57,476.44
  4. Step 4: Simplify right side
    120,688.84x = 10,405,426,641.89
  5. Step 5: Solve for x
    x = 10,405,426,641.89/120,688.84
  6. Step 6: Final answer
    x = 86,216.97

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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.