Home / 136,312.04-188,138.58-79,737.32

Finding the Fourth Proportional to 136,312.04, 188,138.58 and 79,737.32

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Solution

The fourth proportional to 136,312.04, 188,138.58 and 79,737.32 is: 110,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,312.04 : 188,138.58 = 79,737.32 : x
  2. Step 2: Convert to fraction form
    136,312.04/188,138.58 = 79,737.32/x
  3. Step 3: Cross multiply
    136,312.04x = 188,138.58 × 79,737.32
  4. Step 4: Simplify right side
    136,312.04x = 15,001,666,157.81
  5. Step 5: Solve for x
    x = 15,001,666,157.81/136,312.04
  6. Step 6: Final answer
    x = 110,053.86

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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.