Home / 124,558.16-171,885-70,835.68

Finding the Fourth Proportional to 124,558.16, 171,885 and 70,835.68

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Solution

The fourth proportional to 124,558.16, 171,885 and 70,835.68 is: 97,750.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,558.16 : 171,885 = 70,835.68 : x
  2. Step 2: Convert to fraction form
    124,558.16/171,885 = 70,835.68/x
  3. Step 3: Cross multiply
    124,558.16x = 171,885 × 70,835.68
  4. Step 4: Simplify right side
    124,558.16x = 12,175,590,856.80
  5. Step 5: Solve for x
    x = 12,175,590,856.80/124,558.16
  6. Step 6: Final answer
    x = 97,750.25

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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.