Home / 99,068.79-136,714.91-56,628.23

Finding the Fourth Proportional to 99,068.79, 136,714.91 and 56,628.23

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Solution

The fourth proportional to 99,068.79, 136,714.91 and 56,628.23 is: 78,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,068.79 : 136,714.91 = 56,628.23 : x
  2. Step 2: Convert to fraction form
    99,068.79/136,714.91 = 56,628.23/x
  3. Step 3: Cross multiply
    99,068.79x = 136,714.91 × 56,628.23
  4. Step 4: Simplify right side
    99,068.79x = 7,741,922,401.19
  5. Step 5: Solve for x
    x = 7,741,922,401.19/99,068.79
  6. Step 6: Final answer
    x = 78,146.94

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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.