Home / 76,188.36-105,143.70-45,973.16

Finding the Fourth Proportional to 76,188.36, 105,143.70 and 45,973.16

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Solution

The fourth proportional to 76,188.36, 105,143.70 and 45,973.16 is: 63,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,188.36 : 105,143.70 = 45,973.16 : x
  2. Step 2: Convert to fraction form
    76,188.36/105,143.70 = 45,973.16/x
  3. Step 3: Cross multiply
    76,188.36x = 105,143.70 × 45,973.16
  4. Step 4: Simplify right side
    76,188.36x = 4,833,788,126.45
  5. Step 5: Solve for x
    x = 4,833,788,126.45/76,188.36
  6. Step 6: Final answer
    x = 63,445.23

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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.