Home / 136,915.74-205,421.00-97,778.16

Finding the Fourth Proportional to 136,915.74, 205,421.00 and 97,778.16

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Solution

The fourth proportional to 136,915.74, 205,421.00 and 97,778.16 is: 146,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,915.74 : 205,421.00 = 97,778.16 : x
  2. Step 2: Convert to fraction form
    136,915.74/205,421.00 = 97,778.16/x
  3. Step 3: Cross multiply
    136,915.74x = 205,421.00 × 97,778.16
  4. Step 4: Simplify right side
    136,915.74x = 20,085,686,916.47
  5. Step 5: Solve for x
    x = 20,085,686,916.47/136,915.74
  6. Step 6: Final answer
    x = 146,701.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.