Home / 103,368.96-142,611.84-58,631.04

Finding the Fourth Proportional to 103,368.96, 142,611.84 and 58,631.04

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Solution

The fourth proportional to 103,368.96, 142,611.84 and 58,631.04 is: 80,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,368.96 : 142,611.84 = 58,631.04 : x
  2. Step 2: Convert to fraction form
    103,368.96/142,611.84 = 58,631.04/x
  3. Step 3: Cross multiply
    103,368.96x = 142,611.84 × 58,631.04
  4. Step 4: Simplify right side
    103,368.96x = 8,361,480,495.51
  5. Step 5: Solve for x
    x = 8,361,480,495.51/103,368.96
  6. Step 6: Final answer
    x = 80,889.66

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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.