Home / 260,106.04-390,185.02-70,569.38

Finding the Fourth Proportional to 260,106.04, 390,185.02 and 70,569.38

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Solution

The fourth proportional to 260,106.04, 390,185.02 and 70,569.38 is: 105,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,106.04 : 390,185.02 = 70,569.38 : x
  2. Step 2: Convert to fraction form
    260,106.04/390,185.02 = 70,569.38/x
  3. Step 3: Cross multiply
    260,106.04x = 390,185.02 × 70,569.38
  4. Step 4: Simplify right side
    260,106.04x = 27,535,114,946.69
  5. Step 5: Solve for x
    x = 27,535,114,946.69/260,106.04
  6. Step 6: Final answer
    x = 105,861.11

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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.