Home / 99,386.13-137,156.72-56,953.07

Finding the Fourth Proportional to 99,386.13, 137,156.72 and 56,953.07

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Solution

The fourth proportional to 99,386.13, 137,156.72 and 56,953.07 is: 78,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386.13 : 137,156.72 = 56,953.07 : x
  2. Step 2: Convert to fraction form
    99,386.13/137,156.72 = 56,953.07/x
  3. Step 3: Cross multiply
    99,386.13x = 137,156.72 × 56,953.07
  4. Step 4: Simplify right side
    99,386.13x = 7,811,495,304.58
  5. Step 5: Solve for x
    x = 7,811,495,304.58/99,386.13
  6. Step 6: Final answer
    x = 78,597.44

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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.