Home / 115,880,169.15-159,875,082.90-71,811,088.56

Finding the Fourth Proportional to 115,880,169.15, 159,875,082.90 and 71,811,088.56

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Solution

The fourth proportional to 115,880,169.15, 159,875,082.90 and 71,811,088.56 is: 99,074,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880,169.15 : 159,875,082.90 = 71,811,088.56 : x
  2. Step 2: Convert to fraction form
    115,880,169.15/159,875,082.90 = 71,811,088.56/x
  3. Step 3: Cross multiply
    115,880,169.15x = 159,875,082.90 × 71,811,088.56
  4. Step 4: Simplify right side
    115,880,169.15x = 11,480,803,736,669,242
  5. Step 5: Solve for x
    x = 11,480,803,736,669,242/115,880,169.15
  6. Step 6: Final answer
    x = 99,074,792.70

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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.