Home / 76,156.13-105,088.75-42,166.51

Finding the Fourth Proportional to 76,156.13, 105,088.75 and 42,166.51

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Solution

The fourth proportional to 76,156.13, 105,088.75 and 42,166.51 is: 58,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.13 : 105,088.75 = 42,166.51 : x
  2. Step 2: Convert to fraction form
    76,156.13/105,088.75 = 42,166.51/x
  3. Step 3: Cross multiply
    76,156.13x = 105,088.75 × 42,166.51
  4. Step 4: Simplify right side
    76,156.13x = 4,431,225,459.62
  5. Step 5: Solve for x
    x = 4,431,225,459.62/76,156.13
  6. Step 6: Final answer
    x = 58,186.06

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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.