Home / 137,924.64-190,332.99-76,666.77

Finding the Fourth Proportional to 137,924.64, 190,332.99 and 76,666.77

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Solution

The fourth proportional to 137,924.64, 190,332.99 and 76,666.77 is: 105,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,924.64 : 190,332.99 = 76,666.77 : x
  2. Step 2: Convert to fraction form
    137,924.64/190,332.99 = 76,666.77/x
  3. Step 3: Cross multiply
    137,924.64x = 190,332.99 × 76,666.77
  4. Step 4: Simplify right side
    137,924.64x = 14,592,215,567.74
  5. Step 5: Solve for x
    x = 14,592,215,567.74/137,924.64
  6. Step 6: Final answer
    x = 105,798.47

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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.