Home / 103,812.16-143,260.77-56,065.51

Finding the Fourth Proportional to 103,812.16, 143,260.77 and 56,065.51

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Solution

The fourth proportional to 103,812.16, 143,260.77 and 56,065.51 is: 77,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,812.16 : 143,260.77 = 56,065.51 : x
  2. Step 2: Convert to fraction form
    103,812.16/143,260.77 = 56,065.51/x
  3. Step 3: Cross multiply
    103,812.16x = 143,260.77 × 56,065.51
  4. Step 4: Simplify right side
    103,812.16x = 8,031,988,133.04
  5. Step 5: Solve for x
    x = 8,031,988,133.04/103,812.16
  6. Step 6: Final answer
    x = 77,370.40

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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.