Home / 99,109.85-136,769.64-56,088.54

Finding the Fourth Proportional to 99,109.85, 136,769.64 and 56,088.54

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Solution

The fourth proportional to 99,109.85, 136,769.64 and 56,088.54 is: 77,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,109.85 : 136,769.64 = 56,088.54 : x
  2. Step 2: Convert to fraction form
    99,109.85/136,769.64 = 56,088.54/x
  3. Step 3: Cross multiply
    99,109.85x = 136,769.64 × 56,088.54
  4. Step 4: Simplify right side
    99,109.85x = 7,671,209,423.93
  5. Step 5: Solve for x
    x = 7,671,209,423.93/99,109.85
  6. Step 6: Final answer
    x = 77,401.08

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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.