Home / 205,075.60-307,613.40-64,877.20

Finding the Fourth Proportional to 205,075.60, 307,613.40 and 64,877.20

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Solution

The fourth proportional to 205,075.60, 307,613.40 and 64,877.20 is: 97,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,075.60 : 307,613.40 = 64,877.20 : x
  2. Step 2: Convert to fraction form
    205,075.60/307,613.40 = 64,877.20/x
  3. Step 3: Cross multiply
    205,075.60x = 307,613.40 × 64,877.20
  4. Step 4: Simplify right side
    205,075.60x = 19,957,096,074.48
  5. Step 5: Solve for x
    x = 19,957,096,074.48/205,075.60
  6. Step 6: Final answer
    x = 97,315.80

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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.