Home / 98,130.18-135,417.51-57,301.32

Finding the Fourth Proportional to 98,130.18, 135,417.51 and 57,301.32

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Solution

The fourth proportional to 98,130.18, 135,417.51 and 57,301.32 is: 79,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,130.18 : 135,417.51 = 57,301.32 : x
  2. Step 2: Convert to fraction form
    98,130.18/135,417.51 = 57,301.32/x
  3. Step 3: Cross multiply
    98,130.18x = 135,417.51 × 57,301.32
  4. Step 4: Simplify right side
    98,130.18x = 7,759,602,074.11
  5. Step 5: Solve for x
    x = 7,759,602,074.11/98,130.18
  6. Step 6: Final answer
    x = 79,074.57

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1.5x scale

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.