Home / 103,583,145.60-155,374,718.40-65,287,900.80

Finding the Fourth Proportional to 103,583,145.60, 155,374,718.40 and 65,287,900.80

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Solution

The fourth proportional to 103,583,145.60, 155,374,718.40 and 65,287,900.80 is: 97,931,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,583,145.60 : 155,374,718.40 = 65,287,900.80 : x
  2. Step 2: Convert to fraction form
    103,583,145.60/155,374,718.40 = 65,287,900.80/x
  3. Step 3: Cross multiply
    103,583,145.60x = 155,374,718.40 × 65,287,900.80
  4. Step 4: Simplify right side
    103,583,145.60x = 10,144,089,201,727,134
  5. Step 5: Solve for x
    x = 10,144,089,201,727,134/103,583,145.60
  6. Step 6: Final answer
    x = 97,931,851.20

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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.