Home / 99,109.77-136,762.18-56,093.20

Finding the Fourth Proportional to 99,109.77, 136,762.18 and 56,093.20

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Solution

The fourth proportional to 99,109.77, 136,762.18 and 56,093.20 is: 77,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,109.77 : 136,762.18 = 56,093.20 : x
  2. Step 2: Convert to fraction form
    99,109.77/136,762.18 = 56,093.20/x
  3. Step 3: Cross multiply
    99,109.77x = 136,762.18 × 56,093.20
  4. Step 4: Simplify right side
    99,109.77x = 7,671,428,315.18
  5. Step 5: Solve for x
    x = 7,671,428,315.18/99,109.77
  6. Step 6: Final answer
    x = 77,403.35

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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.