Home / 157,130.91-216,840.51-85,510.80

Finding the Fourth Proportional to 157,130.91, 216,840.51 and 85,510.80

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Solution

The fourth proportional to 157,130.91, 216,840.51 and 85,510.80 is: 118,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,130.91 : 216,840.51 = 85,510.80 : x
  2. Step 2: Convert to fraction form
    157,130.91/216,840.51 = 85,510.80/x
  3. Step 3: Cross multiply
    157,130.91x = 216,840.51 × 85,510.80
  4. Step 4: Simplify right side
    157,130.91x = 18,542,205,482.51
  5. Step 5: Solve for x
    x = 18,542,205,482.51/157,130.91
  6. Step 6: Final answer
    x = 118,004.82

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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.