Home / 152,368.80-210,266.64-85,303.20

Finding the Fourth Proportional to 152,368.80, 210,266.64 and 85,303.20

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Solution

The fourth proportional to 152,368.80, 210,266.64 and 85,303.20 is: 117,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,368.80 : 210,266.64 = 85,303.20 : x
  2. Step 2: Convert to fraction form
    152,368.80/210,266.64 = 85,303.20/x
  3. Step 3: Cross multiply
    152,368.80x = 210,266.64 × 85,303.20
  4. Step 4: Simplify right side
    152,368.80x = 17,936,417,245.25
  5. Step 5: Solve for x
    x = 17,936,417,245.25/152,368.80
  6. Step 6: Final answer
    x = 117,717.13

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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.