Home / 136,468.36-188,323.50-76,038.76

Finding the Fourth Proportional to 136,468.36, 188,323.50 and 76,038.76

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Solution

The fourth proportional to 136,468.36, 188,323.50 and 76,038.76 is: 104,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,468.36 : 188,323.50 = 76,038.76 : x
  2. Step 2: Convert to fraction form
    136,468.36/188,323.50 = 76,038.76/x
  3. Step 3: Cross multiply
    136,468.36x = 188,323.50 × 76,038.76
  4. Step 4: Simplify right side
    136,468.36x = 14,319,885,418.86
  5. Step 5: Solve for x
    x = 14,319,885,418.86/136,468.36
  6. Step 6: Final answer
    x = 104,931.91

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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.